if you want to be super educated about all the einstein relativity brouhaha then there is this bookhttps://en.wikipedia.org/wiki/Gravitation_(book)
special relativity is the special case of how light propagates when a source of the light is moving at any velocity relative to an observer of light from that source, its "discovery" was a natural effect of the work of maxwell on the electromagnetic nature of light. https://en.wikipedia.org/wiki/James_Clerk_Maxwell
special relativity is just the doppler effect applied to light, people involved in astronomical spectroscopy were already applying the principles of special relativity to their observations before einstein published special relativity, which was an oversimplified "flat space" approximation of observed reality in which gravity doesn't affect the propagation of light.
general relativity does everything special relativity does, but it also includes gravity, the effect of gravity on light, the effect of light on gravity, including all of the craziness that supposedly happens at high relative velocities.
special relativity says that if you were in a space ship traveling very fast towards a star then the star would look brighter than if you were at the same distance, but sitting still relative to the star.
general relativity says that if you were in a space ship traveling very fast towards a star then the star would look brighter than if you were at the same distance, but sitting still relative to the star and that the star would also seem heavier if you traveling towards it very fast as opposed to sitting still at a constant distance from the star.
its all just gay ass soyence faggotry, its just an approximation of observed reality that doesn't quite work right when closely examined, but if you point that out in the world of academic soyence then you're antisemitic for questioning the jew.
relativity is a modernized, judeo-atheist soyence rewrite of the work issac newton.
the big bang is a modernized, judeo-atheist soyence rewrite of the book of genesis.
marx's communism judeo-atheist soyence rewrite of the teachings of jesus christ.
star war is a judePost too long. Click here to view the full text.